SAP HANA isn't simply a database, it's an entire platform for application development. The main learning areas in SAP HANA are:
Administration and Security
SAP HANA Modeling
Core Data Services in SAP HANA
Server-side Development with the use of SAP HANA’s extended application service HANA XS
SQL Script- which is an extension of SQL by SAP HANA
Learn SAP HANA today with SAP HANA certification program.